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Appendix III.


regulator has been much improved in Mr. Andrew Forster's inven-
tion Fig. 881. The gun-metal casing A is fixed to or near the boiler
so that flange B connects to water, and c to steam. The level is

Fleed Regulator.     Fug. SSt

at 1), but may be adjusted within certain limits. The hollow
float E is connected to lever F, so as to act on the 'pilot' valve oy
thus distributing steam to the large piston H, which again acts on
the feed cock K through the lever j. If the feed be too slow, the